Why not consider one of the newer fully digital amplifiers from Hong Kong and China? They are petite and compact, highly power efficient, most come with usable tone controls, they have LCD/OLED display, can drive most types of speaker loads, and they drastically shorten and simplify the audio path. Of course this assumes that your source is either SPDIF coaxial or optical, or USB. Some models do have analog input too. From what I've read on forums they're supposed to be very good sounding and will be much more cost effective than amp+ DAC or a conventional amp with built-in DAC. This type of products (fully digital amplifiers) are still in its infancy but with some of the newer chipsets from Texas Instruments, ST Microelectronics, Tripath too (IIRC), etc, the sonics is supposed to be very good and therefore worthy of serious consideration. Check out the thread on SMSL products elsewhere here on the forum. There are many other similar vendors making ground breaking products.